Sil­ver­Sneak­ers Mus­cu­lar Strength Train­ing North­east Older Adult Cen­ter, 8101 Bustleton Ave. Fri­days at 8:30 a.m. Also on Mondays and Wed­nes­days at 8:30 and 9:30 a.m. $2 per class if not covered by your in­sur­ance. 215-685-0576. More at: Klein JCC, 10100 Jam­is­on Ave. Ap­pro­pri­ate for older adults who are un­fa­mil­i­ar with ex­er­cise as well as those who are fit and act­ive. Fri­days at 9:15 a.m. and 1 p.m. Free. 215-698-7300.

Phil­adelphia Po­lice Ex­plorers Phil­adelphia Po­lice Academy, 8501 State Road. Pro­gram is for ages 14 to 20 who are in­ter­ested in a ca­reer in law en­force­ment. Sat­urdays. 10 a.m. www.pp­don­line.org (Click on Ex­plorers link).

Sil­ver Book­worms So­cial break­fast group for single, wid­owed and di­vorced per­sons 60 years and older meets at 10:30 a.m. the first and third Sat­urday of each month. Call for loc­a­tion. 215-624-3786.

Tum­bling for Chil­dren May­fair Com­munity Cen­ter, 2990 St. Vin­cent St.Boys and girls ages 3-6 Mondays from 4 to 4:45 p.m.; ages 7-8 Mondays from 4:45 to 5:45 p.m. 215-683-1994. More at: Pi­car­i­ello Play­ground, Red Li­on and Calera roads. Suit­able for ages 4 and older at all levels. $10 re­gis­tra­tion. Class fees will be col­lec­ted in three in­stall­ments. Time and cost: 215-685-9393.

Tu­tor­ing Pro­gram Max My­ers Play­ground, 1601 Heller­man St. Suit­able for chil­dren in kinder­garten through grade 12. Par­ents must re­gister chil­dren in the of­fice. Time and inf.: 215-685-1242.

Fox Chase Art Group Fox Chase Lib­rary, 501 Rhawn St. New mem­bers in­vited. Par­ti­cipants can work in any me­di­um. There are no re­stric­tions as to level of ex­per­i­ence. Free. Mondays.1 to 3 p.m. 215-731-0101, 215-335-9042.

Gym­nastics Pel­bano Re­cre­ation Cen­ter, Bustleton and Solly av­en­ues. Suit­able for ages 4 and older. Groups will be sep­ar­ated by age and skill­set. Tues­days through May. 4:30 to 9 p.m. Re­gister. 215-683-1975.

Joint Re­place­ment Sur­gery Sem­in­ar Jeanes Hos­pit­al, 7600 Cent­ral Ave. The be­ne­fits of total joint re­place­ment and what can be ex­pec­ted in the hos­pit­al and after dis­charge will be dis­cussed. A ques­tion-and-an­swer peri­od will also be held. 11 a.m. to noon.Re­gister. 215-728-4818.

Sur­viv­ors of Sui­cide Aria Health, Tor­res­dale Cam­pus, Knights and Red Li­on Roads. Self-help group for those who have lost a loved one to sui­cide. 7:30 p.m. The group meets the second Tues­day of every month. 215-545-2242.